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The company

Tecogen Inc.

TGEN · NYSE American

IndustrialsMachineryNot moving yet

TGEN stood above a rising 150-day average in 3 of the last 52 weekly readings, and has been out of that trend for the last 49 weeks. It is 45.9% below that average now. Machinery: 27% of its 143 stocks in an uptrend (−5 points in four weeks); Industrials: 27% (−5 points in four weeks).

SEC filings

Statistics

Rotation: Not moving yet
Weeks in an uptrend: out for 49
Industry in uptrend: 27% -5 in 4 wk
Insider buys, 12 months: $268K
Insider sales, 12 months: $0
Officials’ trades on record: 0
Institutions holding: 65 (+9)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 3 of 52 weeks.

21 Apr – 20 Oct

Machinery: A minority of its stocks are in an uptrend and the share has been slipping. Industrials: A minority of its stocks are in an uptrend and the share has been slipping.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months8

Sale orders, 12 months0

Buyers · sellers6 · 0

Who	Did	Shares	Traded
Ahmed GhoniemDirector	bought	12,723at $0.786	24 Apr 2026filed 27 Apr 2026
Susan B. HirschDirector	bought	5,000at $3.73	13 Apr 2026filed 14 Apr 2026
Earl LewisDirector	bought	5,000at $2.52	27 Mar 2026filed 27 Mar 2026
Susan B. HirschDirector	bought	10,000at $2.54	27 Mar 2026filed 27 Mar 2026
Earl LewisDirector	bought	5,000at $2.88	26 Mar 2026filed 27 Mar 2026
John Kimball Whiting IVGeneral Counsel & Secretary	bought	10,000at $2.38	23 Mar 2026filed 23 Mar 2026
Abinand RangeshChief Executive Officer	bought	3,000at $2.30	20 Mar 2026filed 23 Mar 2026
Roger P. DeschenesCAO	bought	10,000at $2.23	20 Mar 2026filed 23 Mar 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders65+9 on the quarter

New · exited19 · 10

Reported value$48.2M

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
Portolan Capital Management, LLCadded · filed 14 Aug 2026	1,551,113$8.1M	+1,107,558+249.7%
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	788,670$4.1M	+18,706+2.4%
BARD ASSOCIATES INCreduced · filed 12 Aug 2026	682,221$3.6M	-6,088−0.9%
Clear Harbor Asset Management, LLCunchanged · filed 12 Aug 2026	650,000$3.4M	00.0%
HERALD INVESTMENT MANAGEMENT Ltdunchanged · filed 23 Jul 2026	420,000$2.2M	00.0%
GRATIA CAPITAL, LLCnew · filed 14 Aug 2026	388,660$2.0M	+388,660
UBS Group AGadded · filed 13 Aug 2026	363,049$1.9M	+43,213+13.5%
Meros Investment Management, LPadded · filed 14 Aug 2026	353,487$1.8M	+61,782+21.2%
Palisades Investment Partners, LLCreduced · filed 4 Aug 2026	323,090$1.7M	-10,817−3.2%
SUSQUEHANNA INTERNATIONAL GROUP, LLPadded · filed 14 Aug 2026	315,831$1.6M	+206,374+188.5%